This is the illustration. At eight A.M. I took my chronometer sight. At the same moment the distance recorded on the log was noted. At twelve M., when the sight for latitude was taken, I again noted the log, which showed me that since eight o’clock the Snark had run 24 miles. Her true course had been west ¾ south. I entered Table I, in the distance column, on the page for ¾ point courses, and stopped at 24, the number of miles run. Opposite, in the next two columns, I found that the Snark had made 3.5 miles of southing or latitude, and that she had made 23.7 miles of westing. To find my eight o’clock’ latitude was easy. I had but to subtract 3.5 miles from my noon latitude. All the elements being present, I worked up my longitude. My heart almost stood still waiting the answer. By that answer my professional medical prestige stood or fell. Martin, I could see, was quite sure it was going to fall. And then the answer—O blessed answer!!

The Snark has been a hospital for months, and I confess that we are getting used to it. At Meringe Lagoon, where we careened and cleaned the Snark’s copper, there were times when only one man of us was able to go into the water, while the three white men on the plantation ashore were all down with fever. At the moment of writing this we are lost at sea somewhere northeast of Ysabel and trying vainly to find Lord Howe Island, which is an atoll that cannot be sighted unless one is on top of it. The chronometer has gone wrong. The sun does not shine anyway, nor can I get a star observation at night, and we have had nothing but squalls and rain for days and days. The cook is gone. Nakata, who has been trying to be both cook and cabin boy, is down on his back with fever. Martin is just up from fever, and going down again. Charmian, whose fever has become periodical, is looking up in her date book to find when the next attack will be. Henry has begun to eat quinine in an expectant mood. And, since my attacks hit me with the suddenness of bludgeon-blows I do not know from moment to moment when I shall be brought down. By a mistake we gave our last flour away to some white men who did not have any flour. We don’t know when we’ll make land. Our Solomon sores are worse than ever, and more numerous. The corrosive sublimate was accidentally left ashore at Penduffryn; the peroxide of hydrogen is exhausted; and I am experimenting with boracic acid, lysol, and antiphlogystine. At any rate, if I fail in becoming a reputable M.D., it won’t be from lack of practice. Aha, thought I, now at last is he going to pester me with his literary efforts. My soul was in revolt. I had not come all the way to the South Seas to be a literary bureau.

Every day and every day this unending battle goes on. Ukiukiu is the name of the trade-wind that comes raging down out of the north-east and hurls itself upon Haleakala. Now Haleakala is so bulky and tall that it turns the north-east trade-wind aside on either hand, so that in the lee of Haleakala no trade-wind blows at all. On the contrary, the wind blows in the counter direction, in the teeth of the north-east trade. This wind is called Naulu. And day and night and always Ukiukiu and Naulu strive with each other, advancing, retreating, flanking, curving, curling, and turning and twisting, the conflict made visible by the cloud-masses plucked from the heavens and hurled back and forth in squadrons, battalions, armies, and great mountain ranges. Once in a while, Ukiukiu, in mighty gusts, flings immense cloud-masses clear over the summit of Haleakala; whereupon Naulu craftily captures them, lines them up in new battle-formation, and with them smites back at his ancient and eternal antagonist. Then Ukiukiu sends a great cloud-army around the eastern-side of the mountain. It is a flanking movement, well executed. But Naulu, from his lair on the leeward side, gathers the flanking army in, pulling and twisting and dragging it, hammering it into shape, and sends it charging back against Ukiukiu around the western side of the mountain. And all the while, above and below the main battle-field, high up the slopes toward the sea, Ukiukiu and Naulu are continually sending out little wisps of cloud, in ragged skirmish line, that creep and crawl over the ground, among the trees and through the canyons, and that spring upon and capture one another in sudden ambuscades and sorties. And sometimes Ukiukiu or Naulu, abruptly sending out a heavy charging column, captures the ragged little skirmishers or drives them skyward, turning over and over, in vertical whirls, thousands of feet in the air. Again in the morning, it was boots and saddles, cow-boys, and packhorses, and the climb to the top began. One packhorse carried twenty gallons of water, slung in five-gallon bags on either side; for water is precious and rare in the crater itself, in spite of the fact that several miles to the north and east of the crater-rim more rain comes down than in any other place in the world. The way led upward across countless lava flows, without regard for trails, and never have I seen horses with such perfect footing as that of the thirteen that composed our outfit. They climbed or dropped down perpendicular places with the sureness and coolness of mountain goats, and never a horse fell or baulked. One school of bonitas, numbering many thousands, stayed with us day and night for more than three weeks. Aided by the Snark, it was great hunting; for they cut a swath of destruction through the ocean half a mile wide and fifteen hundred miles in length. They ranged along abreast of the Snark on either side, pouncing upon the flying-fish her forefoot scared up. Since they were continually pursuing astern the flying-fish that survived for several flights, they were always overtaking the Snark, and at any time one could glance astern and on the front of a breaking wave see scores of their silvery forms coasting down just under the surface. When they had eaten their fill, it was their delight to get in the shadow of the boat, or of her sails, and a hundred or so were always to be seen lazily sliding along and keeping cool.